NUMERICAL STUDY OF WATERJET INLET PRESSURE

This paper presents the results of a numerical study of the surface pressure distribution in the waterjet intake section. The two- dimensional Navier-stokes equations are solved for the flow around a test boat hull with/without the waterjet system. A jet flow is imposed on the waterjet outlet to adjust the inlet flow. The calculated inlet pressure distribution Cp results are in agreement with published measurements for the case of 30 and 45 degree inlet configurations. Calculations are then made to examine the influence of the bottom lip fairing on the inlet Cp distribution with and without trim. The calculation results show the trim by the stern reduced the value of maximum Cp and results in a small increase in the waterjet energy interaction efficiency.

• Supplemental Notes:
  • Naval Engrs J, v 107 n 5, Sept 1995, p 67 [12 p, 18 ref]
• Authors:
  • Latorre, R
  • Kawamura, T
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Intake valves; Numerical analysis; Pressure; Waterjets
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Intake systems
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00718487
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1996 12:00AM